http://news.nationalgeographic.com/news/2013/13/1307011-population-census-united-nations-un-demographics-world-population-day-birthrate/
It is an undeniable fact. The human population is experiencing exponential growth and is straining the planet's natural resources. The UN estimates that by 2050, there will be 9.6 billion people on earth, an increase from the 2000 projection of 8.9 billion. However, there are three main projections that define the growth; high medium and low. The high is predicting 10.9 billion while the low is predicting 8.3 billion. It all depends on women have a half a child more or less. The middle on is the one that attracts the most attention. The HIV virus is expected to be a major factor in the population growth since it is so widespread and has no known cure. This are also just estimates, it all depends on fertility rate and standard of living there is plenty of room for error. For all we know a great catastrophe could wipe us out.
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